Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual foi a data da nomeação para o gerente que substituiu Kadir Özcan?
 ###Tabelas: CREATE TABLE managerial_changes (managerial_changes_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Outgoing manager VARCHAR, Manner of departure VARCHAR, Date of vacancy VARCHAR, Replaced by VARCHAR, Date of appointment VARCHAR) CREATE TABLE finalised_league_table (finalised_league_table_id AUTO_INCREMENT PRIMARY KEY, Team VARCHAR, Game INT, Draw INT, Loss INT, Goal Gain INT, Goal Loss INT, Goal Diff INT, Point INT) CREATE TABLE region_rank_by_number_of_wins (region_rank_by_number_of_wins_id AUTO_INCREMENT PRIMARY KEY, Region Represented VARCHAR, First Place INT, Second Place INT, Third Place INT, Total Top 3 Placements INT, First Place Winning Year(s) (if applicable) VARCHAR) CREATE TABLE singles:_21_17_titles_4_runner-ups (singles:_21_17_titles_4_runner-ups_id AUTO_INCREMENT PRIMARY KEY, Outcome VARCHAR, Year INT, Championship VARCHAR, Surface VARCHAR, Opponent VARCHAR, Score VARCHAR) CREATE TABLE european_tour_wins_12 (european_tour_wins_12_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Tournament VARCHAR, Winning score VARCHAR, Margin of victory VARCHAR, Runner(s)-up VARCHAR)  
SELECT Date of appointment FROM managerial_changes WHERE Outgoing manager = Kadir Özcan